Eating Disorders Flashcards
What are the lifetime prevalences of anorexia nervosa, bulimia nervosa, and binge eating disorder? When is the peak period of risk for developing an eating disorder?
women: 0.9%, 1.5%, 3.5%
men: 0.3%, 0.5%, 2.0%
- mid- to late-adolescence is the peak period for developing an eating disorder
What % of youth endorse eating disorder thought patterns and behaviours?
15-47%
Which eating disorder has the highest mortality rate of any psychiatric illness? Why?
Anorexia nervosa
- 10% of people with anorexia nervosa die within 10yrs of the onset of the disorder
- 20-25 year life expectancy reduction
What is body image and why is it an important concept for eating disorders?
- how people see, think, feel, and act towards their bodies
- people with eating disorders have clinically different perceptions, feelings, thoughts and behaviours towards their body compared to those without the disorder
What are the core features of eating disorders?
- persistent disturbance of eating or eating related behaviours, resulting in alterations in consumption of food
- changed eating behaviours which impact health and functioning
List the diagnostic criteria for Anorexia Nervosa
- persists over a period of at least 3 months
- persistent behaviours that interfere with maintaining an adequate weight for health (restricting food, purging, misuse of medication, compensating for food through intense exercise)
- powerful fear of weight gain or becoming fat
- overestimations of body size
- denial of seriousness of one’s condition
List the diagnostic criteria for Bulimia Nervosa
- cycle of behaviours occur at least once a week over a period of at least 3 months
- recurring episodes of food restriction followed by binge eating
- recurring behaviours that follow bingeing (purging)
- negatively evaluates body weight and shape and tends to value these more than anything else
- experience shame about their binging and purging and may go to great lengths to hide behaviours
List the diagnostic criteria for Binge Eating Disorder
- bingeing episodes occur at least once a week for 3 months or more
- consumption of unusually large amounts of food during a short period of time (feeling out of control over what is eaten, quantity consumed, and when to stop)
- NOT followed by compensating behaviours such as excessive exercise, self-induced vomiting, or misuse of laxatives
Overeating vs bingeing
overeating = consuming more food than the body needs at a given time
Avoidant/Restrictive Food Intake Disorder (ARFID)
- starts in infancy or childhood
- avoidance of foods with certain textures or colours or particular types of food
- possibly derived from traumatic experiences with food
- nutrition and energy requirements not met
- can lead to anorexia nervosa or bulimia nervosa if untreated
Rumination Disorder
- consistent regurgitation of chewed or partially digested food
- continues over a period of at least 3 months
- swallowed food is brought up into mouth effortlessly (no gagging, nausea)
- rumination can be symptom of anorexia or bulimia
Pica
- persistent consumption of non-food items (soap, paint, paper)
- continues over a period of at least 3 months
Other Specified Feeding or Eating Disorder (OSFED)
- Atypical anorexia nervosa
- same as anorexia nervosa BUT weight is within or above “average” range for age and height - bulimia nervosa (low frequency)
- same as bulimia nervosa, BUT cycles are occur less frequently than once per week - purging disorder
- persistent purging behaviours without binge eating episodes - Night Eating Syndrome
- excessive consumption of food following and evening meal or after waking in the night
- extreme psychological distress and disrupts daily functioning
What are 3 symptoms/disorders that are not recognized by the DSM?
- Anorexia athletica (compulsive exercising)
- orthorexia
- body dysmorphic disorder
Describe Anorexia Athletica
- compulsive exercising
- over exercising to the point that fulfilling their exercise goals takes on more importance than almost anything else in their lives
- unwilling to miss a workout
- taking time off work, school, and relationships to exercise
- focussing on the challenge of exercising instead of enjoyment
- believing one’s self-worth depends on physical performance
- rarely satisfied with physical achievements
- common among athletes and olympians (controversial)